LCM of 164, 138, 578, 644
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 164, 138, 578, 644 with the LCM of Two or More Numbers Calculator. Here we are teaching you two different methods through which you can calculate the LCM of 164, 138, 578, 644. So, keep reading to learn more.
Given numbers are 164,138,578,644
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 164,138,578,644 is 22892268.
Find LCM of 164,138,578,644 with Prime Factorization
| 2 | 164, 138, 578, 644 |
| 2 | 82, 69, 289, 322 |
| 23 | 41, 69, 289, 161 |
| 41, 3, 289, 7 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 23 x 41 x 3 x 289 x 7 = 22892268
Therefore, the lowest common multiple of 164,138,578,644 is 22892268.
LCM formula is LCM(a1, a2, an) = (a1 x a2 x an)/{GCF(a1 x a2 x an) x common factors}
Firstly, we have to find the product of all the numbers.
164 x 138 x 578 x 644 = 8424354624
Then, let us find the GCF of these five numbers. To do so, we have to list down the factors for each number and choose the highest factor that is in all of the lists.
164 : 1, 2, 4, 41, 82, 164
138 : 1, 2, 3, 6, 23, 46, 69, 138
578 : 1, 2, 17, 34, 289, 578
644 : 1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644
2 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 164,138,578,644, is 2.
Now, the common factors can be found like this.
164:2x 2x 41
138:2x 3x 23
578:2x 17x 17
644:2x 2x 7x 23
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 2x 2x 23 = 184
Therefore, the value for common factors is 184.
Now that we have all the elements of the formula, we can plug them in to calculate the LCM.
LCM(a1, a2, an) = (a1 x a2 x an)/{GCF(a1 x a2 x an) x common factors}
LCM = 8424354624/(2x184)
LCM = 8424354624/368
LCM = 22892268
Thus, we can understand that the LCM of 164,138,578,644 is 22892268.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 164, 138, 578, 644
1. What is the LCM of 164, 138, 578, 644?
Answer: LCM of 164, 138, 578, 644 is 22892268.
2. How to calculate the LCM of 164, 138, 578, 644?
The LCM can be found using two methods. You can either use the LCM formula or the prime factorization method to calculate the LCM of 164, 138, 578, 644.
3. What is the LCM formula?
The LCM formula is LCM(a1, a2, an) = (a1 x a2 x an)/{GCF(a1 x a2 x an) x common factors}.